Average Co-Inventor Count = 3.46
ph-index = 3
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Matsushita Electric Industrial Co., Ltd. (3 from 27,375 patents)
3 patents:
1. 5859423 - Plurality of photodetectors, each having individually selected
2. 5691536 - Photo-detector having a uniform output characteristic and fabricating
3. 4898003 - Automobile air conditioner